[redpoint5]

I just did the dash sock thing using silica gel litter. It seems to work reasonably well so far. In the 2 weeks I've had it, only twice have I noticed light fog on the windshield.

After the proof of concept is validated, I'll have my wife sew a long tube of fabric that runs the width of the dash, and a Velcro closure.

From what I've read, the gel will need to be recharged in the oven every few months. A few months gets me through winter, so this might be a once a year process for me.

The reason I resorted to this is that I'm on the very bleeding edge of being able to complete my 14 mile roundtrip commute in EV mode in the Prius. I've had 3 successful trips, but the last 2 the engine kicked on at the last half mile. I suspect loosing daylight and having to run my lights has something to do with the recent failures.